Power Slot Slotted Brake Rotors: Excessive heat can cause resins in your brake pad to vaporize or "outgas." As the brake pad wears, the used friction material turns into a fine dust. This boundary layer of heat, gas and dust builds up between the pad and rotor surfaces and inhibits performance. Here's where Power Slot's slotted brake rotors make a big difference. Power Slot Slotted Brake Rotors are a true performance rotor and feature:* Power Alloy castings (on select applications)- Engineered Performance Rotor- Superior resistance to cracking due to thermal stress - Increased molybdenum (higher carbon)content that extends reliability, service life and helps reduce NVH noise issues - Rotor material is a direct descendant of the patented AeroRotor from StopTech * Introducing directional curve vane design (on select applications)- Improved vane design or OE equivalent on all rotors- Center split castings* New short slot design runs perpendicular to the vane to preserve rotor strength.* Direct OE Replacement * Improved wet weather response * Increased initial bite* Double disc ground for a consistent friction surface and Improved pad bed-in* Mill balanced* Black E-Coated non-friction surfaces onPower Alloy rotors* Enhances open wheel appearance